Paramedics and doctors treated a number of patients for a range of injuries. Alcohol and drugs played a significant role in many of these incidents.

One man fell out of a tree and was taken to hospital.

But, overall, police have praised festival-goers for their good behaviour.

"There's always people who are going to play up but the large amount of people really enjoyed themselves.

"We are pleased the overwhelming majority of revelers were well-behaved all weekend," Supt Cowan said.

Police worked closely with Splendour organisers to ensure festival-goers were safe, including the 17,500 patrons who camped on-site.

Notable arrests:

- On Thursday, 23 July: A police drug dog detected seven MDMA tablets, 3.4 grams of cannabis and 53 capsules containing magic mushrooms from a vehicle. A 19-year-old man who was seated in the car was arrested.He will be charged in the coming weeks.

- On Friday, 24 July: A 21-year-old woman was arrested after police found her to be in possession of 123 tablets of MDMA and a bag of cocaine. She was charged with drug supply offences, before being granted conditional bail to appear at Byron Bay Local Court on 11 September 2015.

- A 19-year-old man was arrested with what police believe to be 92 MDMA tablets, 26 LSD tabs and 35 grams of cannabis. The man was charged with drug supply offences and will appear at Byron Bay Local Court on 11 September 2015.

- On Sunday, 26 July: two 18-year-old men were stopped and searched at the front gates of the festival. Police allegedly located a tin with 398 cardboard squares in plastic bags, believed to be LSD tabs.

Police from Tweed/Byron Local Area Command launched a five-day high-visibility policing operation from Wednesday.

They were assisted by officers from across Northern Region, the Dog Unit, Public Order and Riot Squad, Operations Support Group, Mounted Unit, Traffic and Highway Patrol Command and Police Transport Command.